Now, let me say off the bat that I KNOW everybody on earth takes a bizillion macro photos of bugs when they first get a really awesome camera, and I am aware that it is cliche, and that mine look pretty much like all the others, because while I know many people who are artists with a camera, I myself am an artist who OWNS a camera. That's fine. It's more the delighted amateur naturalist at work than the artist--I don't get an urge to paint these guys, I get an urge to ID 'em. My tendency is for crisp, in focus, and usually centered. I photograph like somebody taking reference material, not like Ansel Adams.
That said, if you see any of these you'd really dearly love a print of, I can manage 5 x 7 of most of 'em, and 8 x 10's of a few, so give a yell, and if you'd like to use any of these as reference material for art, feel free, just drop a credit if you copy really closely or anything.
I put up a few on DeviantArt, but rather than overwhelm the gallery there with OMG bugs, I just knuckled under and got a Flickr account at last.
Green Lynx Spider (WARNING: GIANT CLOSEUP OF ARACHNID. DO NOT CLICK IF PHOBIC.)
Bee Closeup (oh god, the details!)
Red Wombat Photostream (lots more bugs!)